Porcelli, D., Stone, J., & O'Nions, R. (1987). Enhanced 3He 4He ratios and cosmogenic helium in ultramafic xenoliths.
Lua i Stíl Chicago (17ú heag.)Porcelli, DR, J. Stone, agus R. O'Nions. Enhanced 3He 4He Ratios and Cosmogenic Helium in Ultramafic Xenoliths. 1987.
Lua MLA (9ú heag.)Porcelli, DR, et al. Enhanced 3He 4He Ratios and Cosmogenic Helium in Ultramafic Xenoliths. 1987.
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